(ن) نَصَرَ يَنْصُرُ نَصْرًاnaṣara yanṣuru naṣran: to help someone; اُنْصُرْunṣur (imperative, amr): help! ﴿اِنْ تَنْصُرُوا اللّٰهَ يَنْصُرْكُمْ وَيُثَبِّتْ اَقْدَامَكُمْ﴾ (Muḥammad 47:7); ﴿رَبِّ انْصُرْنِيْ عَلَي الْقَوْمِ الْمُفْسِدِيْنَ﴾ (Al-ʿAnkabūt 29:30)
نَصْرٌnaṣr (verbal noun, maṣdar, also a noun, ism dhāt): help. ﴿اِذَا جَآءَ نَصْرُ اللّٰهِ وَالْفَتْحُ﴾ (An-Naṣr 110:1)
نَاصِرٌnāṣir pl. نٰصِرُوْنَ وَاَنْصَارٌnāṣirūna wa-anṣār (active participle, ism fāʿil): one who helps, a helper. ﴿فَمَا لَهُۥ مِنْ قُوَّةٍ وَّلَا نَاصِرٍ﴾ (Aṭ-Ṭāriq 86:10); ﴿مَنْ اَنْصَارِيْٓ اِلَي اللّٰهِ قَالَ الْحَوَارِيُّوْنَ نَحْنُ اَنْصَارُ اللّٰهِ﴾ (Aṣ-Ṣaff 61:14)
نَصِيْرٌnaṣīr (on the pattern of فَعِيْلٌfaʿīl, in the sense of an active participle): one who helps always and in every circumstance. ﴿نِعْمَ الْمَوْلٰى وَنِعْمَ النَّصِيْرُ﴾ (Al-Anfāl 8:40)
مَنْصُوْرٌmanṣūr pl. مَنْصُوْرُوْنَmanṣūrūna (passive participle, ism mafʿūl): one who is helped. ﴿اِنَّهُمْ لَهُمُ الْمَنْصُوْرُوْنَ﴾ (Aṣ-Ṣāffāt 37:172)
نَصْرَانِيٌّnaṣrāniyy pl. نَصٰرٰىnaṣārā (relative adjective, ism nisbah): one connected with help; technically it is used for the Christians (it is said to be in reference to the disciples' words «نَحْنُ اَنْصَارُ اللّٰهِnaḥnu anṣāru al-lāh», and also by attribution to the town of Nazareth, Nāṣirah). ﴿وَقَالَتِ النَّصٰرٰى الْمَسِيْحُ ابْنُ اللّٰهِ﴾ (At-Tawbah 9:30); ﴿مَا كَانَ اِبْرٰهِيْمُ يَهُوْدِيًّا وَّلَا نَصْرَانِيًّا﴾ (Āl ʿImrān 3:67)
Form VI (tafāʿul) تَنَاصَرَ يَتَنَاصَرُ تَنَاصُرًاtanāṣara yatanāṣaru tanāṣuran: to help one another. Only once in the Quran: ﴿مَا لَكُمْ لَا تَنَاصَرُوْنَ﴾ (Aṣ-Ṣāffāt 37:25)
Form VIII (iftiʿāl) اِنْتَصَرَ يَنْتَصِرُ اِنْتِصَارًاintaṣara yantaṣiru intiṣāran: to help oneself, to take revenge; اِنْتَصِرْintaṣir (imperative, amr): take revenge!; مُنْتَصِرٌmuntaṣir (active participle, ism fāʿil): one who takes revenge. ﴿وَلَمَنِ انْتَصَرَ بَعْدَ ظُلْمِهِۦ﴾ (Ash-Shūrā 42:41); ﴿اَنِّيْ مَغْلُوْبٌ فَانْتَصِرْ﴾ (Al-Qamar 54:10); ﴿نَحْنُ جَمِيْعٌ مُّنْتَصِرٌ﴾ (Al-Qamar 54:44)
Form X (istifʿāl) اِسْتَنْصَرَ يَسْتَنْصِرُ اِسْتِنْصَارًاistanṣara yastanṣiru istinṣāran: to seek help. ﴿وَاِنِ اسْتَنْصَرُوْكُمْ فِي الدِّيْنِ فَعَلَيْكُمُ النَّصْرُ﴾ (Al-Anfāl 8:72)